Electrical signaling device.



No 829,192. PATENTED AUG. 21, 1906.

0. M. ALLEN. ELECTRICAL SIGNALING 1215x 105.

APPLICATION FILED OUT.23, 1905 XATTORNEY JLEN, OF BAY CITY, ll'llCHiGAN, ASSlhilOli OF Tlrllililll ltANliiillil A. BENSON AND CHAR LES F. BRAMAN, ()F

Specification of Letters Patent.

Patented Aug. 21, 1906.

Application Sllcd October 23, 1905. Serial No. 283.981.

lie it known that i, CLINTON M. ALLEN, a ciiixcn of the l nitcd States, residing at Bay City", in the county of Bay and State of Michigan, here invi ited certain new and useful lm )roven'icnts in Electrical Signeling Devices; end I do he to he a full, clear, and exact description of the invention, such as will enehie others slrillec in the nrt to which it sppcrtnins to make and use the so. me.

'lhi inveiiti n is vxiiunl si nsling more particularly to i nsinsy heprevcnted. The ob -e 'zproved system is to warn the on on one train of the a m'onch a locomotive upon the some traclr. at to automatically set the c "min when the other frein tl -n e predetermined distance. so and other objects, which Will or later ll this specification, in view, my ition sons n the devices illustrated l owin end the equiv ho-Wing ripper similar stirs on the the drawings, the dein 4. a ates located on one two herein eicctriczti waves are proon eleotricsl conductor running track, and on the other a "ins for receiving impressions K 121.

=igo;nent of the opymretns i3. transmitter made up 05's nit-coil, such used for lniving" orange of, say, city feet; a local batteryhottery", spark-coil, and i iron wire of No. 9 strong on at pole-line there-lion), ,he with to he in acne oi nnic or e ter in length running ?;Uz. "l to the ripv lb of Way, and it receiving-rim moo-c up of :1 local battery, telegrcpli-sonn icr, end at cohercr such as is 's-tciegriph systsi'n, together fog and iving knobs ins-dc o to it suitable rod,

up of brass cells mete...

reb declare the following l l l and each connected to the system by means of Wires.

The operation of the system is as follows:

bore iron wire 1 is strung on a pole-line parallel to the right of way of railroad over which the signal system is to operate. a The wire is in one continuous length over the distence designated to be covered by one section. The wire is ended at the poles 2, which are the beginning and the end of the section. The wire covering the next sectionstnrts at the first pole 2 following the last pole of the preceding section. The Wires of each section. ere not to be connected together. In the cob 3 of locomotive attached to a train which is traveling, say, north is located the signal-transmitting apparatus, comprising a hightension spark-coil 4, it local battery 5, and a contnct-mnker. The contact-maker is referably constructed as follows: An insaluted contact 1'3, of spring-copper, is placed on any suitable stationary port oi the engine, end another contact 7 of spring-copper, is located on a revolving port oi the locomotive say on the inside of one of the drivers 8thc position of these two contacts being so orrenged that once during every revolution the circuit is closed. Assuming the contact to be made as 'nloove described, the current from the local battery 5 will flow follows: from the positive side of the battery 5 to the primary winding of the spsrlvcoil 4 and from there, rnesins of an insulated Wire, to the stationary oint 5 of the con tact-maker, then to the revo ving point 7 of the contact-maker, tln'ou'gh the inetol of the engine, back to the negative side 5* of the battery, which is connected to some convenient bolt or screw attached to the 111etslwcrk of the engine. This completes the local bettery-circuit, which in turn causes a spark to jump between the sporlcge p on the high-tension side of the spark-coil, thereby setting up electrical vibrations.

the outside of the cal) and connected by a if e brass hall 9 is supported on wire to one side 4* of the spark-gap, "the other side of the spark-gap being connected by a w"- e' P to the metal part of the engine, thereby grounding the high-tension current, electrical vibrations willhe set up in the iron Wire on the pole-line which is parallel to the right of way, and these vibrations will affect the wire in one section.

Ion

If a locomotive traveling south on the simc track is fitted with receiv ng devices and is Within the section covered by the iron Wire of the triiin coming north, the vibrations sent out by the transmitting devices of the norti -bound train Will c ii'cct the receiving device of the south-bound train. The receiving device of thesoutl -hound train consists of a, bress hall 10, s ably supported to the cab 3 of the. engine connected by an in-. sulcted wire it to one'side of a Wireless-telercplncoherer 12, the opposite side of the co crcr being connected by a. Wire to the metal part of the engine, thereby being grounded. The local battery-circuit in the cab 3 of the south-hound train will be thrown into action by' the passage of these vibrations through the coherer, thereby causing the cattery 13 to operate suitablypieced magnets 14, which in turn actuate suitable signaling dcvices to Warn the engineer of the approach of these other trains, or the magnets may opercte'further to actuate suxiliary'devices, such. as sin emergency-cinbralre valve.

For the sake of clecrness in the drawings 1 have not illustrated in specific form the means for connecting the magnet 14 to the sir-hrake-actuating mechanism. Means for electrically operating sirvalves are wvell known at the present time, and many such devices are to he found in the market. i therefore do not desire to confine myself to any particular form of apparatus interposed between the magnet and the eir hrake system of the train, hut wish it to be understood that any suitable device for the purpose may be employed.

Having fully described my invention, What I claim as new is 1. The combinction with an electrical conductor, of a traveling vehicle, a local circuit carried thereby, the circuit being suitably grounded, an intermittent nicke-cnd-hreal: device located in the circuit and actuated by the movement of the vehicle, a. high-tension spark-coil in the circuit, a transmitting n1emher connected with the spcrlccoil, 21 second moving vehicle, a suitably grounded ioccl circuit carried thereby, a. ooherer in the circuit, a receiving member connected with the transmitting; r rulimr, the moving ve cult carried by one and hreulr ice ted in the circuit and adopted to 0 en L the some coinci-' do "1" of the vehicie, :1- sp coil 1e cu .it, the w p which prov-it: i .l tcrmincis, a;

Ateriorly of ul witn one milcrv a second of the terininc v local licttery crierg zed ci 'cuit by anothcr movii r lo, the circuit being suitgrounr u, o. conerer in said circuit, c receiving meg-char coon-e ad with the coherer and adapted to rcc electrical vibrations from the station i conductor, and electromagnet in 1 circuit, said magnet adapt ed to be cctuet' of the local circuit received from the stction:

til by the electrical vibrations a v electricei conductor.

aststioncry conductor, a vehicle movarhie adjacent the conductor, 21 battery-oi? cuit carried. by vcl'iiclc, one end oi the circuit hci grounded, stationery contact with which the opposite end of the circuit is connected, a niovchic contact carried by a rotating port of the vehicle and adapted to engage the stationary contact lying in its path of movement, at every rotation, means,

in the circuit for prcj ecting electric al wave to the conductor, a second vehicle, and electrorcsponsivc receiving means carried thereby and cncr Led by the electrical Wave pro jcctcd from the first binned vehicle.

In testimony w col uilix my signature in presence of two wimcsscs.

3. An electric signaling device comprising 0 

